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以通平高速为依托,对不同种岩性的粗集料在常温和高温状态的压碎值进行试验。试验结果表明:对于集料压碎值指标来说,集料常温压碎值可能高于或低于集料的高温压碎值。探讨了集料吸水率以及集料的岩性和内部构造与压碎值的关联性。这些结论对于集料的高温压碎值的指标技术要求的规定有一定的参考价值。
Based on the high-speed and high speed, the crushing value of coarse aggregate of different kinds of lithology at normal temperature and high temperature was tested. The test results show that for crushing value of aggregates, crushing value of aggregates at room temperature may be higher or lower than crush value of aggregates. The relationship between water absorption of aggregate and the lithology and internal structure of aggregates and crush value was discussed. These conclusions have certain reference value for the stipulation of the index technical requirement of crush value of aggregate.